Lamp shade and other translucent screen



June 1 1926. 1,586,577

D. L. RAITT LAMP SHADE AND OTHER TRANSLUCENT SCREEN Filed April 16, 1925 WVE/Vm? 2. A. FQZZZ A ME) Patented June 1, 192 6 UNITED s'r ATESF "PA LAMP 'SHADEIAND OTHER 'rnnnsnuonnzr sonnnn."

Application filed April 16, 1925, seri rno,

This invention relates to translucent screens and lamp shades forgas or electric lightlof the type comprising a framework adapted to carry in the sides thereofpanels or plates of rial."

The object of the invention is to provide an improved construction of frame which Wlll be rigid 1n costruction, neat ln appear' ance' and'has means whereby th'e'panels or the like can be readily interchanged.

. In the preferred formof the invention,-

the frame ispolygonal in form andfmay be either an open or panels of glass or other translucent material carry advertising matter "which becomes illuminated by the lamp.

According to the invention the frame comprises upper andlower rigid polygonal members having rectilinear faces and spacing rods holding them fixedly apart. The

rectilinear edges of theupper and lower V shaped plate v3 those indicated, at 6*, 6

jmer'hbers are provided with lips, lugs, or

other projections against which removable panying drawing in which-.

, Fig. 1 illustrates a lamp shade of the lantern type, and Fig.2 a translucent shade GODlPllSlllg only three vertical panels.

Referring now to the drawing, the dev ce according to Fig. 1 comprises upper and lower rigid polygonal members 1, 2 formed of angle metal comprising horizontal webs 1 9' and vertical webs 1 2". The upper part ofthe lamp is completed by a domehaving a central hole for the mounting of" a lamp socket 4, and the lower part may be openor closed by a simple plate. The members 1. 2 are held apart by means of circula'rrods 5-011 each of which are-mounted two hinged flaps siic'h p H v The transp'are nt panel 7 is a iited to be held b tyveen upper and laser were 1 Sr anti the anger find lower vertical was 1 by glass, cardboard, or other. mate closed polygon, and the 23 636, andin Great Britain April 30, 1924.

means ofthe hinged flapswhich fold over and retain the panel in itsproper position as will. be readily understood. In the drawing, the markedfi is illustrated as being open in order to allow the corresponding panel 7 to be withdrawn; flaps 6 6 on one" pillar areboth urged intothe closing position byfmeans of a single spiralspring such as that illustrated at 8 i i i is not limited to the form above described Preferably two KIt isto understood that the invention oFjF cE. 3

DAVID LEYR ITT, or LONDON, ENG AND.

comprising a lantern like hanging shade.

Qnthe otherlhand a screen-like shade is illustrated in Fig. 2 which is also con structed according to the present invention,

the said shadecomprising a stand supporting a translucent screen of three plane panels set at angles to each other, the panels being held by similar means to those illustratedwith regard to Fig. 1. i

Clearly the device illustrated in Fig.

may have a reflecting back if desired with- I i e out departing from the spirit of the invention, and it is therefore to be understood:

that the upper and lower frameworks are not restricted to theshape of a closedpolygon,but that the invention covers either:v

an open polygon or the arrangement of panels in line ina single plane.

In a modification the inventionmay be 7 applied to a sign illuminated from.within having a straight front comprising a series of panels'arranged all in one plane and sus ceptible of replacement and exchange. In such a sign the angle bars will p'referablybe used for the upper and lower framing and provided at intervals along the length of the barswithdouble hinged flaps for the replacement and exchange of the panels in themanner described.

I claimzv I 1. Frame for translucent screen comprising parallel rigid polygonal members, abut ment members thereon; transverse spacing rods between said parallel members, retaining flaps hinged about said rods for movevertical rods ment ina plane at right angles thereto, and,-

springs permanently urging said flaps in retaining position. v

2. Frame for translucent screen comprising parallel rigid polygonal members, abutment members thereon, transverse spac ng lei members, retain F j l r i i ii e i 111g h nged abfeut said rods jn ment in a plane at right thereto, as

" panel springs permanently coiled round said rods to urge said flaps in closing position.

3. A frame for holding a panel including; upper and lower membersagainstwwhich the panel is adapted to rest, and opposing retaining members adapted for pivotal movement with respect to the frame to overlie the edges of-the panel and springs serving to operate the retaining members toward the and for exerting a panel holding pressure on said members, the panel as supported by the upper andlower members serving as a. limit for the OPBIZLtlVG'IIlO-VGIDQII'E of the retaining members.

4. A frame or holding a removable panel, consisting of relatively fixed upper and lower fran'ie'bars to receive the panel and side bars mounted for swinging movement with respect to the vupper and lower framebars to permit said sidebars to be moved into a position to bear upon'the panel or to a position to free the corresponding edges of the paneh and springs serving to operate the retaining members toward the panel and for exerting a panel holding pressure on said members, the panel as supported by the upper and lower members serving-as a limit for the operative movement of the retaining members.

5. A panel receiving lframe comprising upper and lower relatively fixed panel 1'' eeiving frame bars, rods connecting said frame bars and arranged beyond the edges ofthe cooperating panel, and flaps mounted for swinging movement on said rods and extending throughout the length thereof, the free edges of the fit ps being adapted to overlie the'adjacent edges of the panel when the flaps are in closing positions and means to normally .rge the flaps toward closing; position, said means exerting a holding pressureon the liaps following: the morement of the 'l'la-ps'to closing position, the panel as supported by the upper and lowermembers serving as a limit-for the operative more ment of the retainingmembers.

In testimony whereof I at'tiX my signature.

DAVID LEY Rill'l 'l, 

